PSI - Issue 53
João Alves et al. / Procedia Structural Integrity 53 (2024) 236–245 Author name / Structural Integrity Procedia 00 (2019) 000–000
240
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Table 1. Chemical powder characteristics from Ti-6Al-4V grade 23. Alloy: Grade: Chemical composition (wt%): Ti-6Al-4V 23 Al V Fe O C N
H
Y
6,22 4,01 0,25
0,10 0,08 0,03 0,012 0,005
Table 2. Manufacturing parameters (hatch vector) Manufacturing Parameters: Up-skin
In-skin:
Down-skin: Core:
Laser Power (W) Scan Speed (mm/s) Hatch distance (mm) Layer thickness (mm) Energy Density (J/mm 3 )
180
180
150
-------------- -------------- -------------- -------------- --------------
1000 0.08 0.03 75.00
1000 0.12 0.03 50.00
1500 0.06 0.03 55.56
Table 3. Manufacturing parameters (boarder) Manufacturing Parameters: Up-skin
In-skin:
Down-skin: Core:
Number of boarders Laser Power (W) Scan Speed (mm/s) Hatch distance (mm) Layer thickness (mm) Energy Density (J/mm 3 )
0
1
1
-------------- -------------- -------------- -------------- -------------- --------------
-------------- -------------- -------------- -------------- --------------
160 900 0.08 0.03
180 700 0.08 0.03
74.07
107.14
Table 4. Manufacturing Conditions. Parameters:
Results:
Over supply
115
Oxygen level (%)
0.000 Argon
Inert gas
Air speed (m/s)
2.97
Temperature inside the chamber (ºC)
26
Platform temperature (ºC)
71.20
Humidity (%)
48.5
Fig. 2. Process powder preparation cycle.
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